|department = [[Image:Pas de Calais Arms.svg|20px]] [[Pas-de-Calais]]
|arrondissement = Arras
|canton = Heuchin
|INSEE = 62581
|postal code = 62134
|mayor = Claude Hoguet
|term = 2008–2014
|intercommunality = Pays d'Heuchin
|longitude = 2.2775
|latitude = 50.4386
|elevation m = 68
|elevation min m = 60
|elevation max m = 138
|area km2 = 6.22
|population = 290
|population date = 2006
}}
'''Monchy-Cayeux''' merupakan sebuah [[Komune di Perancis|komune]] di [[Departemen di Perancis|departemen]] [[Pas-de-Calais]] di sebelah utara [[Perancis]].
